N-methylformanilide

Density

Link to relevant study record(s)

Reference

Endpoint:

density

Remarks:

density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2016-11-26 – 2016-12-26

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Justification for type of information:

Experimental test result performed using standard test guidelines

Qualifier:

according to guideline

Guideline:

OECD Guideline 109 (Density of Liquids and Solids)

Principles of method if other than guideline:

The density is calculated from the difference in weight between the full and empty pycnometer and its volume

GLP compliance:

no

Type of method:

pycnometer method

Specific details on test material used for the study:

- Name of test material: Formamide, N-methyl-N-phenyl-
- Molecular formula : C8H9NO
- Molecular weight : 135.165 g/mol
- Smiles notation: O=CN(c1ccccc1)C
- InChI: 1S/C8H9NO/c1-9(7-10)8-5-3-2-4-6-8/h2-7H,1H3
- Substance type: Organic
- Physical state: Liquid

Key result

Type:

density

Density:

1.076 g/cm³

Temp.:

20 °C

Remarks on result:

other: by pyknometer method

TEST ITEM DESCRIPTION AND RESULTS

FOR LIQUIDS:

By Pyknometer Method:

Method Details		Observed Values
		1st Observation	2nd Observation
Guideline	OECD 109
Method	IS 4730 : 1994 (Reaffirmed 2010) – Method for Determination of Density of Liquids (First Revision)
Principle of Method	Determination of the mass at a given temperature of a volume of the material contained in a density bottle (pyknometer) and determination of the volume of the latter by determining the mass of the corresponding volume of water at the same temperature. The density is obtained by dividing the mass of material by its volume.
Test temperature	(°C)	20°C	20°C
Atmospheric pressure	(hPa)	977.8	976.4
Weight of empty dry pyknometer(X)	g	30.906	29.386
Weight of pyknometer + test item (Y)	g	85.004	82.705
Apparent mass of test item (M1)	(M1 = Y - X) g	54.098	53.319
Weight of pyknometer + water (Z)	g	80.997	78.805
Apparent mass of water (M2)	(M2 = Z - X) g	50.091	49.419
Buoyancy correction (A)	A = (*ρat × M2)	0.058	0.057
Density of water** at test temperature	g/cm³ (ρtw)	0.9982	0.9982

 

CALCULATIONS:

FOR LIQUIDS

Density = (M1+A)/ (M2+A) X ρtw

1st calculated density	2nd calculated density
(54.098+0.058) ____________ X 0.9982 = 1.077 g/cm3 g/cm³ (50.091+0.058)	(53.319+0.057) ____________ X 0.9982 = 1.076 g/cm3 g/cm³ (49.419+0.057)
Average density	= 1.076 g/cm³

 

Conclusions:

The mean density of N-Methylformanilide (CAS No. 93-61-8) is was found to be 1.076 g/cm³ at 20°C and 977.1 hPa.

Executive summary:

The density of Test item N-Methylformanilide (CAS No. 93-61-8 ) was determined following OECD guideline 109 and according to the Indian standard method for determination of density of liquids [IS 4730:1994 (Reaffirmed 2010)]. The mean density of the test item was found to be 1.076 g/cm³ at 20°C and 977.1 hPa.

Description of key information

The mean density of N-Methylformanilide (CAS No. 93-61-8) is was found to be 1.076 g/cm³ at 20°C and 977.1 hPa.

Key value for chemical safety assessment

Relative density at 20C:

1.076

Additional information

The density of Test item N-Methylformanilide (CAS No. 93-61-8 ) was determined following OECD guideline 109 and according to the Indian standard method for determination of density of liquids [IS 4730:1994 (Reaffirmed 2010)]. The mean density of the test item was found to be 1.076 g/cm³ at 20°C and 977.1 hPa.

Other supporting data from reliable sources such as authoritative database and handbook, also supported the selected key study and exhibited the density of substance N-methylformanilide as 1.095 g/cm3 at 20°C, closer to the selected key study.